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Vulnerability Assessment

Weakness
CWE
CWE-306
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Authentication required for critical functions
MITRE ATT&CK

1 technique across 1 tactic: Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

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Impact

Unauthorized access to protected functionality, data, or administrative interfaces, potentially leading to full system compromise. With a CVSS score of 7.5 (HIGH), this represents a significant risk.
Exploit ScenarioDerived

An attacker manipulates authentication tokens, exploits logic flaws, or uses default credentials to bypass the login mechanism and access restricted areas.
This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 16, 2026

Missing authentication for critical function in Windows Remote Desktop Licensing Service allows an unauthorized attacker to bypass a security feature over a network.

Earlier versions of this analysis (1)
v1 Mar 16, 2026 - 04:21 CVSS 7.5

RemediationAI

Implement robust authentication mechanisms. Use multi-factor authentication. Review authentication logic for bypass conditions. Remove default credentials.

Affected VersionsENISA

Windows Server 2016 10.0.14393.0 <10.0.14393.8246
Windows 10 Version 21H2 10.0.19044.0 <10.0.19044.6093
Windows Server 2022 10.0.20348.0 <10.0.20348.3932
Windows Server 2019 10.0.17763.0 <10.0.17763.7558
Windows Server 2012 6.2.9200.0 <6.2.9200.25573
Windows 11 Version 24H2 10.0.26100.0 <10.0.26100.4652
Windows Server 2019 (Server Core installation) 10.0.17763.0 <10.0.17763.7558
Windows Server 2008 R2 Service Pack 1 (Server Core installation) 6.1.7601.0 <6.1.7601.27820
Windows 10 Version 1809 10.0.17763.0 <10.0.17763.7558
Windows 11 Version 23H2 10.0.22631.0 <10.0.22631.5624
Windows Server 2012 (Server Core installation) 6.2.9200.0 <6.2.9200.25573
Windows Server 2008 R2 Service Pack 1 6.1.7601.0 <6.1.7601.27820
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.0 <10.0.25398.1732
Windows Server 2025 10.0.26100.0 <10.0.26100.4652
Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 <6.3.9600.22676
Windows 11 version 22H3 10.0.22631.0 <10.0.22631.5624
Windows Server 2016 (Server Core installation) 10.0.14393.0 <10.0.14393.8246
Windows 10 Version 22H2 10.0.19045.0 <10.0.19045.6093
Windows 10 Version 1607 10.0.14393.0 <10.0.14393.8246
Windows 11 version 22H2 10.0.22621.0 <10.0.22621.5624
Windows Server 2025 (Server Core installation) 10.0.26100.0 <10.0.26100.4652
Windows Server 2012 R2 6.3.9600.0 <6.3.9600.22676

Affected Packages

euvd windows_10_version_1607 fix: 10.0.14393.8246
euvd windows_10_version_1809 fix: 10.0.17763.7558
euvd windows_10_version_21h2 fix: 10.0.19044.6093
euvd windows_10_version_22h2 fix: 10.0.19045.6093
euvd windows_11_version_22h2 fix: 10.0.22621.5624
euvd windows_11_version_22h3 fix: 10.0.22631.5624
euvd windows_11_version_23h2 fix: 10.0.22631.5624
euvd windows_11_version_24h2 fix: 10.0.26100.4652
euvd windows_server_2008_r2_service_pack_1 fix: 6.1.7601.27820
euvd windows_server_2008_r2_service_pack_1_server_core_installation fix: 6.1.7601.27820
euvd windows_server_2012 fix: 6.2.9200.25573
euvd windows_server_2012_r2 fix: 6.3.9600.22676
euvd windows_server_2012_r2_server_core_installation fix: 6.3.9600.22676
euvd windows_server_2012_server_core_installation fix: 6.2.9200.25573
euvd windows_server_2016 fix: 10.0.14393.8246
euvd windows_server_2016_server_core_installation fix: 10.0.14393.8246
euvd windows_server_2019 fix: 10.0.17763.7558
euvd windows_server_2019_server_core_installation fix: 10.0.17763.7558
euvd windows_server_2022 fix: 10.0.20348.3932
euvd windows_server_2022_23h2_edition_server_core_installation fix: 10.0.25398.1732
euvd windows_server_2025 fix: 10.0.26100.4652
euvd windows_server_2025_server_core_installation fix: 10.0.26100.4652

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 22 packages in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

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Technical ContextAI · show details

An authentication bypass vulnerability allows attackers to circumvent login mechanisms and gain unauthorized access without valid credentials. This vulnerability is classified as Missing Authentication for Critical Function (CWE-306).

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

3
Analysis Updated
Apr 16, 2026 - 06:32 EUVD-patch-fix
executive summary
Patch available
Apr 16, 2026 - 05:29 EUVD
10.0.14393.8246,10.0.19044.6093,10.0.20348.3932
CVE Published
Jul 08, 2025 - 17:15 nvd
HIGH 7.5

Executive ViewAI

Why It Matters

CVE-2025-48814 affects Windows Remote Desktop Licensing Service and permits unauthenticated remote attackers to bypass a critical security feature, potentially enabling unauthorized access to RD licensing infrastructure across networked systems. Organizations running Windows Remote Desktop environments face immediate risk of licensing controls being circumvented, which could compromise access management and compliance posture.

Business Impact: High
Compensating Controls

Apply vendor patch. If patching cannot be immediately deployed, implement network-level access controls by restricting access to the Remote Desktop Licensing Service port to trusted administrative networks only, and disable the service on systems where RD licensing is not required.

Threat Intelligence Overview

EPSS Score
0.2%
Top 63% exploitable
Data Quality
4 sources
Confidence: Medium
EUVD NVD CVE.org EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.2%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact
High

Priority Score

38
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +38
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication Bypass CRITICAL

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

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Same weakness CWE-306 – Missing Authentication for Critical Function

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References

Advisories & patches
ADVISORY https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-48814 ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2025-48814

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